222780240 has 160 divisors (see below), whose sum is σ = 812626560. Its totient is φ = 55904256.

The previous prime is 222780227. The next prime is 222780241. The reversal of 222780240 is 42087222.

222780240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222780241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33687 + ... + 39753.

It is an arithmetic number, because the mean of its divisors is an integer number (5078916).

Almost surely, 2^222780240 is an apocalyptic number.

222780240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222780240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406313280).

222780240 is an abundant number, since it is smaller than the sum of its proper divisors (589846320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222780240 is a wasteful number, since it uses less digits than its factorization.

222780240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106 (or 6094 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 222780240 is about 14925.8246003362. The cubic root of 222780240 is about 606.2134332995.

The spelling of 222780240 in words is "two hundred twenty-two million, seven hundred eighty thousand, two hundred forty".